spc spd spg sph spi spl spo spp spr sps spt sr- sra srb src srd srg srh sri srl sro srp srr srs srt ss- ssa ssb ssc ssd ssg ssh ssi ssl sso ssp ssr sss sst sta stb stc std stg sth sti stl sto stp str sts stt taa tab tac tad tag tah tai tal tao tap tar tas tat tba tbb tbc tbd tbg tbh tbi tbl tbo tbp tbr tbs tbt tca tcb tcc tcd tcg tch tci tcl tco tcp tcr tcs tct tda tdb tdc tdd tdg tdh tdi tdl tdo tdp tdr tds tdt tga tgb tgc tgg tgh tgi tgl tgo tgp tgr tgs tgt th- tha thb thc thd thg thh thi thl tho thp thr ths tht tia tib tic tid tig tih tii til tio tip tir tis tit tla tlc tld tlg tlh tli tll tlo tlp tlr tls tlt to- toa tob toc tod tog toh toi tol too top tor tos tot tpa tpb tpc tpd tpg tph tpi tpl tpo tpp tpr tps tpt tra trb trc trd trg trh tri trl tro trp trr trs trt tsa tsb tsc tsd tsg tsh tsi tsl tso tsp tsr tss tst tta ttb ttc ttd ttg tth tti ttl tto ttp ttr tts ttt